Improvement in centrifugal apparatus for forcing volatile or corrosive liquids through



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. 0. H. KRAUSE. Centrifugal Apparatus for Forcing Volatile or Corrosive Liquids through or from Sugar or other Substances.

I 11 I ll 1 aid/4% N-PETERS, PHOTO-LITHOGRAPHER. WASHINGTON, D O.

2 Sheets-Sheet 2.

0. H. KRAUSE. OentrifugaliApparatus for Forcing Volatile 0r Corrosive Liquids through or from Sugar or otherSubstanoes.

No. 221,923. Patented Nov. 25,1879

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N. PETERS, PHOTO-LITNDGRAFNER, WASHINGTON. D c.

, NEED TATES PATENT OFF orro. H. KRAUSE, or JERSEY CITY, NEW JERSEY.

' IMPROVEMENTJN CENTR'IFUGAL APPARATUS FORFORCING VOLATILE 0R CORROSIVE LIQUIDS THROUGH 0R FROM SUGAR OROTHER SUBSTANCES.

Specification forming part of Letters Patent, N0122L923, dated November 2 1879; application filed I August 8, 1879.

CASE A.

' To all whom it may concern:

'Be it known that I, OTTO H. KRAUSE, of Jersey City, New Jersey, have invented certain Improvements in Centrifugal Apparatus for Forcing Volatile or Corrosive Liquids by Gentrifuga-l Action Through or Separating Them from Sugar or other Substances, of which the followingis a specification.

It is theobject of my invention to prevent damage or loss by the evaporation of volatile or corrosive liquids employed in liquoring or washing sugar and other substances in the centrifugalmachine; and my invention consists, primarily, of a tight chamber divided into two compartments, one of which is the receivingchamber for the sugar or other material to be treated, and also forthe treating-liquor, while the other is a collecting-chamber, which collects and retains the treating-liquor when it has beendriven out of the sugar or other material by centrifugal action.

My tight chamber may be made of any desired form-as, for example, it may be made sector-shaped, like the sugar-molds of a centrifugal machine, or it may be made cylindrical and constitute the central portion of a revolving drum. In eitherevent the radially-outward wall of the receiving-chamber is formed of a perforated or permeable diaphragm, to permit the exit of the treating-liquor under the influence of centrifugal action, and the collectin g-chamber is so situated with relation to the treating-chamber that the treating-liquor, hav; in g been received therein, is retained and prevented from returning into the receiving-chamher.

I have embodied my invention in two forms of apparatus. In one, which forms the subject of the present specification, the collectingcliamber is separated from the chamber which contains the sugar or other substance to be treated by a perforated diaphragm and by an inclined wall infront of the perforated diaphragm, which acts as a dam in retaining the treating-liquor in the collecting-chamber after the liquor has been driven by centrifugal action up and over the upwardly and outwardly inclined side of the dam. In another pending application, which I have designated as Case B, my collecting-chamber is situated immediate] y beneath the receivin g-cha-mber, and the of the receiving-chainberby centrifugal action,

falls by its own gravity into the collecting V chamber beneath, and is there retained.

In the accompanying drawings, Figure 1 is a transverse horizontal sectionof my invention embodied in the form of a centrifugalmachine mounted upon a vertical spindlethrough the line 00 w on Fig. 2, and Fig. 2 is a central vertical section thereof. Fig. 3 is a central vertical section of my invention embodied in a centrifugal machine mounted upon a horizontal axis. Fig. 4 is a vertical section through the line 3 1 on Fig. 5, Fig. 5 being a top view of a sector-shaped chamber resembling a sugarmold, and intended, like a sngarmold, to be deposited in the basket of a centrifugal machine.

In that form. of my invention which is ex hibited in Figs. 1 and 2 a drum, A, is mounted upon a central vertical spindle, B, and has at the top a central opening, with a cover, 0, which may be made to tightly close the opening by means of the clamps D afterthe sugar or other material to be treated has been introduced into the central portion of the drum.

The central portion of the drum is separated from the outer portion by means of the perforated circular diaphragm E, the space F within the perforated diaphragm constituting the receiving-chamber.

Immediately outside the perforated diaphragm 1 provide a flaring circular wall, G, which is either perforated near the top with the holes H, or may be terminated within a short distance of the top of the drum.

The space I between the flaring wall G and the periphery of the drum is my collectingchamber, and is provided with faucets K, by means of which the fluid driven into the collecting-chamber may be drawn off.

In operation the treating-liquor, which is i ntroduced into the central portion of the drum with the sugar or other substance, is driven outward by centrifugal force through the perforated wall E, and rides up the side of the flaring wall G, and escapes through the perforations H or over the top of the wall G into the collecting-chamber I, where it is retained until drawn off by means of the faucets K.

The flaring wall serves as a dam, whichpre vents the return of the treating-liquor into the central portion of the drum.

In the modification of my invention which is shown in Fig. 3 the drum A, as will be seen, is mounted upon a horizontal axis, B, and the aperture for charging the central portion of the drum is'on one side of the center.

The circular wall of the central chamber is composed of the perforated rim E and the dam of the two conical shields G G, the inner edges of which are provided with outwardly-projecting flanges Gr G In that form of my invention which is exhibited in Figs. 4 and 5 my liquorin g apparatus is represented in the form of a sugar-mold, and is intended for deposit in the basket of a centrifugal machine, orinarotating drum. In

this case the apparatus consists of a sectorshaped box, to, having its inner vertical side, 0, removable. Clamps d are provided for fastenin g the removable side 0 to the box after the material to be treated. and the treating-liquor have been introduced into the receiving-chamberf. The outer vertical wall, 0, of the receiving-chamber is a perforated diaphragm, and the inclined wall 9 is interposed between the perforated diaphragm c and the outer vertical wall, I, of the box. The top of the box is provided with ahandle, m, by means of which the box may be lifted.

In operation, a series of these boxes, having been filled with sugar or other substance to be treated and charged with treating-liquor, are placed in a circle around the outer portion of the revolving drum or basket of a. centrifugal machine, and by centrifugal action the treating-fluid is driven outward from the chamber f through theperforated diaphragm e, and rides over the inclined wall 9 and falls into the space i, which is the collecting-chamber. \Vhen the operation is completed the box is removed from the centrifugal machine, and the clamp 61 being loosened,'the side 0 is'detached and the contents of the chamber removed. The fluid collected in the chamber 11 may then be drawn off by opening the cockj, or by turning the box upside down and holding it in a slightly-inclined position.

The operation of separating the fluid from the material contained in the receiving-chamber is performed without any exposure to damage or loss by reason of the evaporation of suc fluid, because the entire apparatus is tight, and the fluid is retained in the collecting-chamber until it is desired to draw it off.

It will, of course, be understood that, if desired, boxes having open outer faces and containing material to be drained may be deposited in the central chamber or drum, A, the diameter of the opening in the top of the drum and of the cover 0 being in such case suitably enlarged.

hen the material to be drained is deposited directly in the central chamber of the drum the opening in the top need not be any larger than that indicated in Fig. 1.

I claim as my invention in apparatus for separating volatile or corrosive fluids from sugar or other substances by centrifugal force- A box or chamber provided with a close-fitting removable cover, and divided by a perforated diaphragm and an .inclined wall into two compartments, the one for receiving the material to be treated and the treating-liquor, and the other for collecting and retaining the treatin g-liquor driven out of the receiving-chamber by centrifugal force, substantially asdescribed.

O. H. KRAUSE. 

